水拉恩氏菌JZ-GX1及其诱变菌株对马尾松苗的促生效应

doi:10.3969/j.issn.1000-2006.2014.03.016

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南京林业大学学报（自然科学版） ›› 2014, Vol. 38 ›› Issue (03): 83-87.doi: 10.3969/j.issn.1000-2006.2014.03.016

水拉恩氏菌JZ-GX1及其诱变菌株对马尾松苗的促生效应

李桂娥,吴小芹^*

南京林业大学森林资源与环境学院,江苏南京 210037

出版日期:2014-05-15 发布日期:2014-05-15
基金资助:
收稿日期:2013-06-20 修回日期:2013-12-19
基金项目:国家林业公益性行业科研专项项目(201004061); 江苏高校优势学科建设工程资助项目(PAPD)
第一作者:李桂娥,硕士生。*通信作者:吴小芹,教授。E-mail: xqwu@njfu.edu.cn。
引文格式:李桂娥, 吴小芹. 水拉恩氏菌JZ-GX1及其诱变菌株对马尾松苗的促生效应[J]. 南京林业大学学报:自然科学版,2014,38(3):83-87.

A study on growth promotion effect of Rahnella aquatilis JZ-GX1 and its excellent mutant strains on masson pine seedlings

LI Gui’e, WU Xiaoqin^*

College of Forest Resources and Environment, Nanjing Forestry University, Nanjing 210037, China

Online:2014-05-15 Published:2014-05-15

摘要/Abstract

摘要： 水拉恩氏菌(Rahnella aquatilis)JZ-GX1及其诱变菌株JZ-GX1-2和JZ-GX1-10能够有效降解植酸盐。笔者将水拉恩氏菌JZ-GX1及其优良突变菌株接种于马尾松实生苗,研究其对马尾松实生苗生长的影响,分别于接种60、120、180 d后测定并比较各接种实生苗的光合参数和叶绿素含量,以及接种前和接种180 d后马尾松苗的苗高和地径生长量。结果表明:接种菌剂对马尾松苗净光合速率(Pn)、PSⅡ实际的光化学量子效率(Ф_PSⅡ)和叶绿素含量,以及马尾松苗高和地径的生长促进作用,其中诱变菌株JZ-GX1-2的促进作用最佳,其次是诱变菌株JZ-GX-10,再者是经筛选获得的野生型菌株JZ-GX1。试验结果表明水拉恩氏菌JZ-GX1及其诱变菌株JZ-GX1-2和JZ-GX1-10可用于进一步开展田间试验和野外造林试验。

Abstract: Rahnella aquatilis JZ-GX1 and its excellent mutant strains are efficient phytate-degrading bacteria. In this study, R. aquatilis JZ-GX1 and its excellent mutant strains JZ-GX1-2 and JZ-GX1-10 were inoculated on masson pine seedlings to study their growth promotion effects. Photosynthetic parameters and chlorophylls content were determined respectively, 60, 120 and 180 days after inoculation. Seedling height and ground diameter of masson pine seedling were measured on the 180th days after inoculation. Results showed that compared to CK, JZ-GX1 and JZ-GX1-2 and JZ-GX1-10 had a significant promoting effect on photosynthetic parameters(Pn, Ф_PSⅡ), chlorophyll content, and growth of masson pine seedlings, in which the effect of mutant strain JZ-GX1-2 was the best, followed by mutagenesis strain JZ-GX-10 and wild screening strain JZ-GX1. In present study, the strain JZ-GX1 and its mutagenesis strains JZ-GX1-2 and JZ-GX1-10 all showed better growth promotion effect than that of the control, they could be used for further field trial and field afforestation.

中图分类号:

S718.83

李桂娥,吴小芹. 水拉恩氏菌JZ-GX1及其诱变菌株对马尾松苗的促生效应[J]. 南京林业大学学报（自然科学版）, 2014, 38(03): 83-87.

LI Gui’e, WU Xiaoqin. A study on growth promotion effect of Rahnella aquatilis JZ-GX1 and its excellent mutant strains on masson pine seedlings[J].Journal of Nanjing Forestry University (Natural Science Edition), 2014, 38(03): 83-87.DOI: 10.3969/j.issn.1000-2006.2014.03.016.

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水拉恩氏菌JZ-GX1及其诱变菌株对马尾松苗的促生效应

A study on growth promotion effect of Rahnella aquatilis JZ-GX1 and its excellent mutant strains on masson pine seedlings

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